Introduction Flashcards

1
Q

Trace Elements

A

Chemical elements present in minute amounts in the environment

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2
Q

Monomer

A

A molecule that can be bonded to other identical molecules to form a polymer

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3
Q

Amino Acid

A

Monomer of proteins

-contains an amino and carboxyl group

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4
Q

Monosaccharide

A

Simple sugars

-e.g. glucose

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5
Q

Carbohydrate

A

A molecule consisting of CHO

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6
Q

Nucleotide

A

Consists of a nucleoside and a phosphate group

The basic structural unit of nucleic acids (DNA, RNA)

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7
Q

Lipid

A

Non-polar hydrocarbons

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8
Q

Residue

A

Monomer minus water

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9
Q

Peptide Bond

A

Covalent bond linking two amino acids together

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10
Q

Glycosidic Bond

A

Covalent bond linking two monosaccharides together

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11
Q

Phosphodiester Bond

A

Covalent bond linking two nucleotides together

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12
Q

Electrostatic Interactions

A

The attractive and repulsive interactions between charged molecules

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13
Q

Van der Waals Radius

A

The radius of an imaginary hard-sphere represents the distance of the closest approach for another atom

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14
Q

Electronegativity

A

The tendency for an atom to attract shared electrons when forming a bond

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15
Q

Dipole Interactions

A

Attractive forces between polar non-charged groups

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16
Q

LDF

A

Attractive forces between nonpolar molecules

17
Q

Hydrophilic

A

Water-loving

18
Q

Hydrophobic

A

Water-hating

19
Q

Amphipathic

A

Polar and nonpolar components on a molecule

20
Q

Monomer of Proteins

A

Amino acids

21
Q

Function of Proteins

A

Literally everything

22
Q

Elements Present in Proteins

23
Q

Bond in Proteins

A

Peptide Bond

24
Q

Monomer of Nucleic Acids

A

Nucleoside

25
Function of Nucleic Acids
Storage and expression of genetic information
26
Elements Present in Nucleic Acids
CHONP
27
Bond in Nucleic Acids
Phosphodiester
28
Monomer of Polysaccharide
Monosaccharides
29
Function of Polysaccharides
Energy and storage
30
Elements Present in Polysaccharides
CHO
31
Bond in Polysaccharides
Glycosidic
32
Monomer of Lipids
No true monomer
33
Function of Lipids
Energy reserve, regulate hormones, signalling, membranes
34
Elements in Lipids
CHOPSN
35
Bond in Lipids
Covalent bonding
36
Electrostatic Forces that Act on Biological Molecules
``` Ionic interactions Hydrogen bonds Van der Waals -dipole-dipole interactions -London dispersion forces ```
37
Is Dipole-Dipole or LDF stronger?
Dipole-dipole
38
Hydrophobic Effect
Water forms a "cage" around nonpolar molecules Nonpolar compounds tend to associate with each other in aqueous environments -reduces the amount of surface area exposed to water, increasing the entropy of the water